Affordable Access

Synthesis and structure of alkyl-substituted fused thiophenes containing up to seven rings.

Authors
  • He, Mingqian
  • Zhang, Feixia
Type
Published Article
Journal
The Journal of organic chemistry
Publication Date
Jan 19, 2007
Volume
72
Issue
2
Pages
442–451
Identifiers
PMID: 17221960
Source
Medline
License
Unknown

Abstract

We have established a series of synthetic methods to synthesize alkyl-substituted fused thiophenes with degrees of fusion from two to seven rings. These fused thiophene ring compounds have very good solubility in common organic solvents, making possible the solution processing of these compounds for electronic applications. The UV absorption of these fused thiophenes is blue-shifted when compared with their hydrocarbon counterparts. The larger band gaps result in much better stability. Single-crystal X-ray results for 3,6-didecanyldithieno[2,3-d:2',3'-d']thieno[3,2-b:4,5-b'']dithiophene (FT5) and 3,7-didecanylthieno[3,2-b]thieno[2',3':4,5]thieno[2,3-d]thiophene (FT4) demonstrate that both compounds form pi-stacking structures instead of a herringbone-type of packing motif. This more favorable pi-stacked structure may lead to better material electronic properties such as mobility in devices fabricated with these compounds.

Report this publication

Statistics

Seen <100 times